Proxmark3 Firmware Update – June 2025
Smarter RFID Attacks, Faster iClass Recovery, New Tools for MIFARE & ST25TB
We’re excited to share a new Proxmark3 firmware release, built on the dedication of an outstanding open-source community. This update brings major performance gains, new simulation capabilities, improved MIFARE intelligence, and expanded platform support—delivering sharper tools for reverse engineering, hardware hacking, and RFID security testing.
Whether you’re simulating glitches in iClass, dumping MIFARE Plus cards with better detection, or working on new ST25TB standalone workflows—this release will make your RFID toolkit smarter, faster, and more precise.
MIFARE Classic, Plus, and Ultralight Improvements
🚨 Smarter detection in hf mf info and autopwn—gracefully exits when encountering DESFire, limits operations on Plus cards.
🧠Refined output in hf mf rdsc, chk, and eview—better clarity, color correction for large card types.
🔄 hf mfu sim now retains counter increases in memory.
🧰 hf_mfu_ultra.lua enables restoring dumps and clearing ULTRA/UL-5 tags.
âś… Fixes for keyfile handling, emulator memory size, and MAD v2 publisher sector detection.
iClass Legacy & SIO Attack Enhancements
🚀 ~147% faster brute-force recovery with hf iclass legrec, now supporting multithreading and adjustable delays.
🔧 New --sl and --fast options for even more efficient key cracking.
🧪 hf iclass sim now includes glitch modes for key block (-t 7) and SIO block (-t 6) simulations.
🛠️ Device-side support for iClass tearoff, better CSN-based info parsing, and more accurate dump defaults.
New Features & Platform Support
🆕 Standalone mode: HF_ST25_TEAROFF added—store and restore ST25TB tags including counters, no host required.
🔄 Support for PM3ULTIMATE platform (docs + FPGA included).
🖥️ Updated pm3.sh—uses PowerShell for serial port enumeration (WMIC deprecated).
🧩 OSX make install now fixed, thanks to @DaveItsLong!
Bug Fixes & Quality of Life Updates
Proper index parsing in hf iclass legbrute, corrected emulator memory sizes, fixed flash dict usage in hf mf fchk --mem.
Stable operation of lf hitag dump when in public or TTF mode.
Improved visual and logic handling across MIFARE and iClass workflows.
Community Thanks
None of this would be possible without the relentless contributions from the RFID hackers around the world.
Shoutout to @antiklesys, @doegox, @n-hutton, @jump, @gentilkiwi, @, @mak-42, @BIOS9, @sup3rgiu, and many others who continue to evolve this essential toolkit.
Ready to Dive In?
GitHub: GitHub - RfidResearchGroup/proxmark3: Iceman Fork - Proxmark3
Join the Community: https://iceman.one/
Test the update, break some tags, submit feedback—and help shape the future of RFID hacking!
